Patents by Inventor Robert A. Smithson
Robert A. Smithson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7214159Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: May 8, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson, Jeffrey A. Birchak
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Patent number: 7204777Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 17, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7201695Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 10, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson, Jeffrey A. Birchak
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Patent number: 7201693Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 10, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7201694Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 10, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson, Jeffrey A. Birchak
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Patent number: 7198582Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 3, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7198583Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 3, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson, Jeffrey A. Birchak
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Patent number: 7198585Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: GrantFiled: January 5, 2005Date of Patent: April 3, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7198584Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: February 3, 2005Date of Patent: April 3, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7169076Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: GrantFiled: January 5, 2005Date of Patent: January 30, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7166052Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: GrantFiled: May 12, 2004Date of Patent: January 23, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7166056Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: GrantFiled: January 5, 2005Date of Patent: January 23, 2007Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Publication number: 20060262411Abstract: Translucent, transparent, or semi-translucent microlens sheetings with composite images are disclosed, in which a composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. The sheeting may have at least one layer of material having a surface of microlenses that form one or more images at positions internal to the layer of material, at least one of the images being a partially complete image. Additional layers, such as retroreflective, translucent, transparent, or optical structure layers may also be incorporated into the sheeting.Type: ApplicationFiled: April 6, 2006Publication date: November 23, 2006Applicant: 3M Innovative Properties CompanyInventors: Douglas Dunn, Robert Smithson, Robert Krasa, Michael Dolezal
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Patent number: 7125297Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: GrantFiled: January 5, 2005Date of Patent: October 24, 2006Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Patent number: 7036620Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: GrantFiled: January 5, 2005Date of Patent: May 2, 2006Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Publication number: 20060084549Abstract: A continuously variable transmission (CVT) having a main shaft configured to support and position various components of the CVT. Shift cam discs cooperate with ball-leg assemblies to shift the transmission ration of the CVT. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.Type: ApplicationFiled: October 4, 2005Publication date: April 20, 2006Inventors: Robert Smithson, Brad Pohl, Oronde Armstrong, Donald Miller, Daniel Dawe, Fernand Thomassy, Matthew Simister, Wesley Poth, Jon Nichols, Charles Lohr
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Patent number: 7011600Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: GrantFiled: February 26, 2004Date of Patent: March 14, 2006Assignee: Fallbrook Technologies Inc.Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
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Publication number: 20050255957Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: ApplicationFiled: July 7, 2005Publication date: November 17, 2005Inventors: Donald Miller, David Allen, Robert Smithson
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Publication number: 20050178893Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.Type: ApplicationFiled: January 5, 2005Publication date: August 18, 2005Inventors: Donald Miller, David Allen, Robert Smithson
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Publication number: 20050176545Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.Type: ApplicationFiled: February 3, 2005Publication date: August 11, 2005Inventors: Donald Miller, David Allen, Robert Smithson, Jeffrey Birchak